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is the first novel written by British author Arthur Conan Doyle, marking the debut of the legendary detective Sherlock Holmes and his companion Dr. John Watson. Published in 1887, the story begins with their first meeting and follows their investigation of a mysterious murder. Combining sharp logic and keen observation, the novel traces the roots of the crime from the streets of London to the American West, blending mystery, suspense, and detective brilliance. It laid the foundation for Sherlock Holmes as an iconic figure in detective literature